code: def test_objs1(self):
      obj0 = MockDistribution(chainer.Variable(numpy.array([1.0])))
      obj1 = MockDistribution(chainer.Variable(numpy.array([10.0])))
      y00 = obj0.y
      y10 = obj1.y
      y01 = obj0.y
      y11 = obj1.y
      assert obj0.y_call_count == 1
      assert obj1.y_call_count == 1
      assert y00 is y01
      assert y10 is y11
      numpy.testing.assert_allclose(y00.array, 6.0)
      numpy.testing.assert_allclose(y10.array, 60.0)
  
file_path: chainer/tests/chainer_tests/utils_tests/test_cache.py
imports: import unittest
  import numpy
  import chainer
  from chainer import testing
  from chainer.utils import cache
label_desc: Use image node_id 6 for calling the TestCachedProperty obj's underlying member method code with example usage: obj.test_objs1() without return types